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Finding the Fourth Proportional to 710,903.20, 1,063,762.80 and 524,279.20

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Solution

The fourth proportional to 710,903.20, 1,063,762.80 and 524,279.20 is: 784,507.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,903.20 : 1,063,762.80 = 524,279.20 : x
  2. Step 2: Convert to fraction form
    710,903.20/1,063,762.80 = 524,279.20/x
  3. Step 3: Cross multiply
    710,903.20x = 1,063,762.80 × 524,279.20
  4. Step 4: Simplify right side
    710,903.20x = 557,708,709,773.76
  5. Step 5: Solve for x
    x = 557,708,709,773.76/710,903.20
  6. Step 6: Final answer
    x = 784,507.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.